GreyCloud wrote:
Tim Smith wrote:
In article <1412875.J6CXpsIYa7@xxxxxxxxxxxxxxx>, Roy Schestowitz wrote:
Ouch! First Dell; and now Apple who recently recalled laptops.
Perhaps the
prestige of expensive vendors and submissive OEM's makes it worthwhile
looking elsewhere.
There is no elsewhere. Apple, Dell, HP, IBM, and everyone else buy
batteries from the same manufacturers.
Makes you wonder tho if these manufacturers are putting too much of a
load on the batteries, approaching the limits of the batteries.
IMHO, it's a heat problem, not a capacity problem, especially with
modern high speed laptops. Which the manufacturers know about, but are
keeping quiet and trying very hard to resist a general recall.
Lithium cells come with dire warnings about exceeding temperature
ratings, and IIRC, the recommended discharge temp. is <60 deg. and
charging temperature is <45 deg. C. Many laptops now operate very near
to these temperatures
I notice many new Acer models, and some of the newer Dells (same OEM?)
now position the battery pack behind the hinge, i.e. the pack is now
"outside" the casing, and hence *much* cooler to the touch, even though
the vented air from the laptop interior is extremely hot.
Come to think of it, all the burning laptop photos are of the design
where the battery is inside the main body of the laptop.
Regards,
ws
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